Clinical trial Recruiting at 1 site Interventional Ages 18 and up

Treatment of skin and soft tissue cancers using alpha radiation emitters

Official title: A Safety and Effectiveness Study of Intratumoral Diffusing Alpha Radiation Emitters for the Treatment of Malignant Cutaneous, Mucosal or Superficial Soft Tissue Neoplasia

Run by Alpha Tau Medical LTD. · NCT03889899 · Data updated 2026-11-12

This study is testing a new treatment that uses tiny radioactive seeds placed directly into skin and soft tissue cancers to see if it can shrink tumors while keeping healthy tissue safe.

More Skin Cancer trials

Quick facts

Study typeInterventional
Ages18 Years and up
SexAll
Enrollment30 (estimated)
SponsorAlpha Tau Medical LTD.
Industry-sponsored
Drugs / interventionsradiation
Locations1 site (Haifa)
StatusRecruiting
StartedOctober 21, 2020
Main results expectedJune 2026
Study endsSeptember 2026
Registry record updatedDecember 2, 2025
Trial IDNCT03889899 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates include adults over 18 with confirmed malignant skin or soft tissue tumors measuring 7 cm or less.

Probably not a fit

Patients with keratoacanthoma tumors or significant comorbidities that may interfere with the study's endpoints are unlikely to benefit.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This clinical trial evaluates the safety and efficacy of a novel treatment method using diffusing alpha radiation emitters (DaRT) for patients with superficial cutaneous, mucosal, or soft tissue neoplasms. The approach involves inserting radioactive seeds directly into the tumor, allowing for localized radiation therapy that aims to reduce tumor size while minimizing exposure to surrounding healthy tissue. The study will assess tumor reduction 70 days post-treatment and monitor adverse events to ensure patient safety.

Why it matters

Potential benefit: If successful, this treatment could provide a more effective and targeted option for patients with superficial cancers, potentially leading to better outcomes and fewer side effects.

How similar studies have gone: While the use of alpha radiation in cancer treatment is a novel approach, similar localized radiation therapies have shown promise in other studies.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Subjects with histopathological confirmation of primary or secondary malignant cutaneous neoplastic lesions, or oral cavity mucosal tumors, or superficial soft tissue sarcoma.
* Subjects with a tumor size ≤ 7 centimeters in the longest diameter.
* Measurable disease according to RECIST v1.1.
* Subjects over 18 years old.
* Subjects' ECOG Performance Status Scale is \< 2.
* Subjects' life expectancy is more than 6 months.
* Platelet count ≥100,000/mm3.
* International normalized ratio of prothrombin time ≤1.8.
* Creatinine ≤1.9 mg/dL.
* Women of childbearing potential (WOCBP) will have evidence of negative pregnancy test.
* Subjects are willing to sign an informed consent form.

Exclusion Criteria:

* Subject has a tumor of Keratoacanthoma histology.
* Patients with significant comorbidities that the treating physician deems may conflict with the endpoints of the study (e.g., poorly controlled autoimmune diseases, vasculitis, etc.)
* Patients undergoing systemic immunosuppressive therapy excepting intermittent, brief use of systemic corticosteroids
* Volunteers participating in another interventional study in the past 30 days which might conflict with the endpoints of this study or the evaluation of response or toxicity of DaRT.
* High probability of protocol non-compliance (in opinion of investigator).
* Subjects not willing to sign an informed consent.
* Women who are pregnant or breastfeeding.

Where it's running

  • RAMBAM Health Care Campus
    Haifa, Israel
    Recruiting

Study contacts

  • Principal investigator: Tomer Charas, MD — Radiotherapy unit at Rambam Health Care Campus, Israel
  • Study coordinator: Liron Dimnik
  • Email: LironD@alphatau.com
  • Phone: +972-2-373-7000

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.